Great app, needs improvements – Block & Flow: Stay focused Review

I love this app for tracking how much time I spend doing things. It's very useful for seeing how much time I spend on each class for homework. I liked it so much I spent $4 for the full version. However it is disappointing when I return to the app and it loses the block that I was working on. I can't multitask while having a block run because I'll just lose it when I return to the app. If I briefly switch to an app that doesn't require much computing power (yes, I don't know the word for it) the block will probably not go away. It is only when the app restarts that I lose a block. For technical purposes I am using a 5th generation iPod that isn't as fast as newer Apple products. On another note I think the premium user should be able to have unlimited categories, not just up to 12. I'm not saying that I'll use 50, but after paying $4 I think the user shouldn't have to worry about running out of category slots. My suggestion is that the number of spaces available be increased, around 24 maybe. I think this is a great app overall but does need some improvements.
Review by Myles busch on Block & Flow: Stay focused.